Comparison

LetsView vs Duet Air

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LetsView

This app offers dashcam functionality with features like WiFi connectivity, ADAS, and night view. It also includes driving time alarms and supports free format.

Highlights
  • WiFi function
  • ADAS function and night view
  • Driving time alarm
  • Free format
Features
Read full description

LetsView dashcam * wifi function * ADAS function and night view * driving time alarm * Format Free

About

Duet Air

Transform your iPad or iPhone into an advanced remote desktop or an extra display for your Mac or PC. Experience unparalleled performance and zero lag, with touch and gesture support. Offers professional-grade drawing capabilities with Apple Pencil integration for artists and designers.

Highlights
  • Remote desktop functionality
  • Extra display for Mac/PC
  • Touch and gesture support
  • Apple Pencil integration for drawing
  • Wireless and wired connectivity
  • Zero lag performance
Read full description

#1 best-selling iPad app in US, Japan, UK, Germany, and 17 other countries! Duet turns your iPad or iPhone into the most advanced Remote Desktop or extra display for your Mac & PC. Developed by a team of ex-Apple engineers, Duet offers unparalleled performance and display quality - all with zero lag. — DO MORE — Be twice as productive by multitasking with two screens. And for those that travel, have a portable way to stay productive. — INCREDIBLY SIMPLE — To get started, plug your iPad into your desktop using your charging cable or choose the desktop to wirelessly connect to. The Duet desktop app will automatically detect your device, and transform it into a high performance touchscreen display. — TOUCHSCREEN — Interact with Mac & PC like never before, with touch & gestures, including two-finger scrolling, pan and zoom. And with our latest release, you can even add a touch bar to any iPad with any Mac. — PERFECT FOR APPLE PENCIL — With Duet Pro, you can turn your iPad and Apple Pencil into a professional graphics tablet. We’ve re-engineered our rendering algorithms for ultra-responsive drawing, optimized specifically for designers, illustrators and artists. Duet Pro also unlocks pressure & tilt sensitivity, hover, palm rejection, and more to seamlessly draw in the most powerful programs for professionals. Get precise control in Photoshop, Corel Painter, Lightroom, ToonBoom, Illustrator, Manga Studio and more. — PRESS — TechCrunch - "Feels Like Magic" TIME - "Getting Work Done Faster and More Efficiently" The Guardian - "Lag-free" Forbes - "The simple thing to note is this...Duet Display works." The Verge - "Glorious Fluidity" Lifehacker - "It's fast, easy to use, and works great" Business Insider - "Zero lag and true retina resolution” Wall Street Journal - “It’s as easy as just plugging it in" — REVIEWS — “Awesome! My iPad Pro can be an extra monitor! Cool app” ~CEO of T-Mobile, John Legere “Very smooth and responsive indeed, plus you could use the touch screen to “click” on screen interfaces!” ~Photographer, Lok Cheung “Love the ability to use my iPad as a monitor with Duet.” ~Former Chief Evangelist of Apple, Guy Kawasaki “Just started using this app called Duet… Kinda love it so far.” ~Comedian and Youtube, Phillip DeFranco “All my mac folks look at the Duet app… GREAT!” ~Actor and Comedian, Sinbad "I really like the app, I suppose the biggest compliment I can give is that it's so easy to setup it almost seems like an Apple product.” ~Early Adopter, M. Nightingale "Amazing solution for me by the way. Works as I was hoping for and actually my main reason for getting an iPad : )” ~Early Adopter, M. Gemzoe Duet Works With: All iPhones and iPads with iOS 11.0 and later All Macs with 10.11 (Mavericks) and later All PCs with Windows 10 64-bit and later Duet Air is a $24.99 per year service built for professionals and remote workers. Price may vary by location. Duet Air subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. Manage Duet Air in Account Settings after the optional upgrade. Learn more at http://www.duetdisplay.com Terms: https://help.duetdisplay.com/duet-terms-services Privacy Policy: https://help.duetdisplay.com/duet-privacy-policy

Screenshots

LetsView4 screens
Duet Air3 screens

Verdict

The call

The clearest difference is rating: Duet Air at 4.3 against LetsView's 2.6. Duet Air also leads on update cadence (every 3 weeks vs every 6 months) and ratings volume (1.9K vs 25). LetsView's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Duet Air sells 2 in-app purchases, starting at $49.99 per year. LetsView asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Duet Air holds the better App Store score, 4.3 against 2.6. That said, the two scores are not equally well evidenced: Duet Air has 1.9K ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 33% of LetsView's written reviews are positive against 24% of Duet Air's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

LetsView ships an update every 6 months, Duet Air every 3 weeks. Both last shipped on October 24, 2026.

Scorecard8 real differences · 2 level
LetsView versus Duet Air: the parameters behind the verdict, then further details
ParameterLetsViewDuet Air
PriceFreeFree
Rating2.6 (25 ratings)4.3 (1.9K ratings) — better
Positive reviews33.3% of reviews — better23.8% of reviews
Number of ratings251.9K — better
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.1 — better12.0
Further details — not scored
Size26 MB67 MB
Age rating4+4+
DeveloperT&F Global Co., Ltd.Duet, Inc.

Customer experience

LetsView

All ratings23 ratings
Positive30.4%
Neutral8.7%
Negative60.9%
Written reviews12 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Duet Air

All ratings1,870 ratings
Positive82.5%
Neutral4.0%
Negative13.5%
Written reviews421 reviews
Positive23.8%
Neutral6.2%
Negative70.1%

Bugs and requests

LetsView

Not enough reviews yet to summarise bugs or requests.

Duet Air

Reported bugs

5 issues
  • Incompatible with Citrix
  • Breaks Windows network
  • Bricked user's PC
  • Login screen issues
  • Inconsistent performance

Requested features

5 requests
  • Support for older devices
  • Improve wireless stability
  • Add audio support
  • Better integration with drawing apps
  • Easier subscription cancellation

In-app purchases

None

LetsView

No in-app purchases

2 purchases

Duet Air

Subscriptions2
  • Duet Air (Annual)7 Days trial$49.991 Year
  • Duet Pro (Annual)7 Days trial$79.991 Year

Questions

Is LetsView free?
LetsView is free to download, with no in-app purchases.
Is Duet Air free?
Duet Air is free to download, with in-app purchases available.
Which has better reviews, LetsView or Duet Air?
Duet Air is rated higher. LetsView averages 2.6 out of 5 from 25 ratings, while Duet Air averages 4.3 from 1.9K ratings.
Do LetsView or Duet Air have ads?
Duet Air shows ads; LetsView does not.
Which is updated more often, LetsView or Duet Air?
LetsView ships an update every 6 months, and Duet Air every 3 weeks. Most recently, LetsView was updated on October 24, 2026 and Duet Air on October 24, 2026.

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